P136C Diagnostic Trouble Code

P136C is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P136C diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
Engine surge

Possible Causes :

Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code P136C is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P136C.

Fortunately, P136C is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P136C Trouble Code For Specific Cars

P136C Cadillac Allante Damper RR Circuit Open
P136C Lammas-graham Supercharged Speed Control Actuator Assembly Cable Slack Failure
P136C Mitsubishi Tredia Bank 2 Fuel Control Shifted Lean
P136C Volkswagen Sp2 SCP (J1850) Invalid Data from IC
P136C Gaz 30 O2 Sensor Circuit Malfunction (Bank 2 Sensor 1)
P136C Porsche Cayman Type 981 Fuel Pump Low Speed Malfunction
P136C Durkopp 24 Hp Immobilizer to PCM Signal Error